Acetone Formation from Photolysis of 2-Propanol on Anatase-TiO2(101)

doi:10.1063/1674-0068/30/cjcp1608170

	Acetone Formation from Photolysis of 2-Propanol on Anatase-TiO2(101)
	Guo, Qing 1; Yang, Xue-ming 1; Geng, Zhen-hua 1,2; Chen, Xiao 1,2; Dai, Dong-xu 1
刊名	CHINESE JOURNAL OF CHEMICAL PHYSICS
	2017-02-01
卷号	30 期号:1 页码:1-6
关键词	2-propanol Photochemistry A-tio2(101) Temperature-programmed Desorption
ISSN号	1674-0068
DOI	10.1063/1674-0068/30/cjcp1608170
文献子类	Article
英文摘要	Photocatalysis of 2-propanol on A-TiO2(101) has been investigated using a temperature programed desorption method with 266 nm laser light. A clear mechanism is proposed for photodissociation of 2-propanol on A-TiO2(101). Acetone product on five coordinate Ti4+ sites is formed in a stepwise manner in which the O-H dissociation proceeds first and then followed by secondary C-H dissociation of 2-propanol while H atoms are transferred to the adjacent bridge bond oxygen (BBO) sites. Low temperature water is formed in a thermally driven process via H-atom on BBO in exchange with isopropyl groups of molecule 2-propanol, while isopropyl radical desorbs at high temperature during the TPD process. The observation demonstrates the prospect of TiO2 as a photocatalyst for degradation of organics.
WOS关键词	METHYL RADICAL EJECTION ; PHOTOCATALYTIC DEHYDROGENATION ; OXYGEN VACANCIES ; SURFACE SCIENCE ; TIO2(110) ; TIO2 ; DEHYDRATION ; METHANOL ; PHOTOOXIDATION ; TEMPERATURE
WOS研究方向	Physics
语种	英语
出版者	CHINESE PHYSICAL SOC
WOS记录号	WOS:000397206700001
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169434]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Guo, Qing; Yang, Xue-ming
作者单位	1.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Guo, Qing,Yang, Xue-ming,Geng, Zhen-hua,et al. Acetone Formation from Photolysis of 2-Propanol on Anatase-TiO2(101)[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2017,30(1):1-6.
APA	Guo, Qing,Yang, Xue-ming,Geng, Zhen-hua,Chen, Xiao,&Dai, Dong-xu.(2017).Acetone Formation from Photolysis of 2-Propanol on Anatase-TiO2(101).CHINESE JOURNAL OF CHEMICAL PHYSICS,30(1),1-6.
MLA	Guo, Qing,et al."Acetone Formation from Photolysis of 2-Propanol on Anatase-TiO2(101)".CHINESE JOURNAL OF CHEMICAL PHYSICS 30.1(2017):1-6.